Drill securing and carrying arm



Oct. 1, w MlLLER DRILL SECURING AND CARRYING ARM Filed May 28, 1954 INVENTOR. George "(Miller nited States Patent DRILL SECURING AND CARRYING ARM George W. Miller, Chicago, Ill., assignor to Goodman Manufacturing Company, Chicago, 111., a corporation of Illinois Application May 28, 1954, Serial No. 433,228

9 Claims. (Cl. 255-51) This invention relates to mining drill rigs and more particularly to an improved universally adjustable drill arm for mounting a drill on a mine vehicle so that the drill may be moved to and properly operated at the desired drilling position and when not in use be carried by the vehicle.

In underground mining operations it is customary to mount a plurality of drills on a vehicle in order to more easily carry the necessary drilling apparatus and to support the drill in required positions to efliciently and effectively drill holes for blasting, roof bolts and other purposes, and further by reason of the vehicle to provide easy movability from place to place in the mine thereby speeding up the mining operation.

It is therefore a primary object of this invention to provide an improved universally movable drill arm secured to a vehicle and adapted to carry a manually operated pneumatic impact type drill so that the drill may be placed in the position desired by the operator during the drilling operation, and the arm further providing improved means to carry the drill when it is not in use.

Other objects and advantages of the present invention will be seen in connection with the accompanying drawings, in which-- Fig. l is a plan view of my drill arm mounted on a vehicle;

Fig. 2 is a side elevational view of Fig. 1, showing a drill in light lines being mounted on the arm; and

Fig. 3 is a schematic arrangement showing a plurality of drill arms mounted on a vehicle.

Referring more particularly to the drawings wherein like reference characters refer to identical elements, there is shown in Figs. 1 and 2 a drill mounting arm generally designated 10. The arm comprises a boom 12 having permanently secured to one end thereof a U-shaped yoke 14. At the other end of the boom 12 there is permanently secured a second U-shaped yoke 16. A second boom element 18 has permanently secured at one end thereof a U-shaped yoke 20, and the second boom element 18 has permanently secured thereto at its other end a troughed element 22.

I have shown the U-shaped yoke elements 14, 16 and as being welded to the booms 12 and 18 respectively. Similarly, trough element 22 has been shown as welded to the boom 18. However, it is to be understood that other means beside welding may be used to rigidly secure elements 12., 14 and 16 and elements 18, 20 and 22 together.

The drill mounting arm 10 is adapted to be swingably mounted on a vehicle 24 by means of a bracket 26 permanently secured thereto by means of bolts 28 or the like. The bracket 26 is further provided with forwardly projecting flanges 30 having vertically aligned openings 32 therein. The leg elements 34 of the first U-shaped yoke 14 are provided with openings 36 which are in vertical alignment with the openings 32 of the flanges 30. A pivot pin 40 is disposed in the aligned openings 32, 36 and permanently retain the boom 12 in a horizontal swing position to the vehicle 24.

' have I chosen to disclose two.

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The second U-shaped yoke 16 on the opposite end of the boom '12 is provided with vertically disposed leg elements 42 having vertically aligned openings 44 therein. A hinge element 46 having a vertically disposed opening 48 registering with the openings 44 is swingably secured to yoke 16 by means of a bolt or pin 50. The opposite end of the hinge 46 is provided with a vertically disposed opening 52 which registers with vertically spaced openings 54 in the legs 56 of the third U-shaped element 20. The second boom 18 is pivotally secured to the hinge 46 by a pin 58 passing through the openings 52 and 54.

It is to be noted that the second boom 18 is swingably secured to the first boom 12 by means of the double pivoted connection comprising yoke 20, pin 58, hinge 46, pin 50 and yoke 16. The above described arm gives a unique and desirable movement in a horizontal plane which allows for the trough 22 on the outer end of the arm 10 to be positioned as desired.

The trough 22 which is permanently secured to the outer end of the second boom 18 is provided with a bottom element 60 and vertically disposed parallel sides 62. Attention is now directed to a flange 64 intermediate the ends of the trough 22 which extends from the lower portion of the bottom 60. Pivotally secured to the flange 64 by means of a pin 66 for vertical movement is one end of a link 68 having a substantially annular clamping element 70 pivotally connected, as at 71, on its outer end.

As shown in Fig. 2 the clamping element 7 0 is adapted to engage and permanently retain a stoper leg 72 of the impact type pneumatic drill shown generally as 74. The specific details of the drill form no part of this invention and accordingly it has been shown in Fig. 2 in light lines in the vertical operative position, and is shown in dotted lines in its horizontally disposed carrying position. The

trough 22 is further provided with a slot 76, not Fig. 1, which is in vertical alignment with the link 68 and provides clearance for the link 68 whenever it is desired to position the drill 74 above the trough 22.

From the foregoing description it will be understood that my novel drill mounting arm provides the flexibility necessary to place a drill in a plurality of operative positions without having to move the vehicle 24. Further, it will be noted that my drill mounting arm provides for an extended or retracted, horizontally swingable, vertically pivotal, operative position which is highly desirable in underground mining operations since in many instances it is impossible to bring a vehicle or other type of mounted drills into the desired location.

Attention is directed to Fig. 3 where I have shown in schematic form two of my drill mounting arms 10 mounted on the vehicle 24. It is to be understood that more or less than two of my drill mounting arms may be mounted on a vehicle, and purely by way of example In such an arrangement, the vehicle would carry a dust collector 78, vacuum pumps and a compressor 82.

It is further believed that from the above description of my novel drill mounting arm that the drill 74 when not in use may be carried in the trough 22, as shown by the dotted lines in Fig. 2. This is advantageous in that the drill 74 may be permanently secured to the link 68 by means of the clamp 70, and it is not necessary to unclamp the drill in order to transport it to a second location, but all that is necessary is to place the drill on the trough 22 wherein the drill will be carried to the second location. The trough 22 is so located that when the drill 74 is placed therein that if the drill is below its center of gravity it will remain in place in the trough and will not bounce out.

While this invention has been described in detail with respect to a particular modification of invent-ion described herein, it is to be understood that the concept of this invention is not limited to those details but is determined by the scope of the appended claims.

1. A drill securing and carrying arm having substantially vertical pivot means adapted to swingably mount one end thereof to a vehicle, carrying means secured to the outer end of the arm, said carrying means comprising a trough-like member adapted to carry a drill, clamping means carried by the carrying means adapted to clamp and secure a drill thereto, said clamping means comprising a link pivotally secured at one end to said trough-like member and extending beyond said trough-like member and a clamp substantially horizontally pivotally secured on the outer end of the link and adapted to have a drill secured thereto. 7

2. A drill securing and carrying arm adapted to be mounted on a vehicle and to carry a drill for extended or retracted substantially horizontal swinging and substantially vertical pivotal movement to locate a drill in a plurality of desired operative positions, said arm comprising a boom element swingably secured at one end thereof to a vehicle and having a clamping and carrying means secured to the outer end thereof, said clamping and carrying means comprising a trough-like element adapted to carry a drill, a link pivotally secured at one end thereof to said trough-like element and extending beyond said troughlike element, a clamp substantially horizontally pivotally secured on the outer end of said link and adapted to have a drill secured thereto and a slot in said trough-like element providing clearance for the pivotal movement of the link.

v 3. The structure defined in claim 2, wherein the boom element has intermediate its ends a double substantially vertical pivot hinge for additional substantially horizontal swinging movement of the arm.

4. A drill securing and carrying arm adapted to be mounted on a vehicle and to carry a drill for substantially horizontal swinging and substantially vertical pivotal movement to locate a drill in a plurality of desired operative positions, said arm comprising a first boom element swingably secured at one end thereof to a vehicle, a second boom element swingably secured at one end thereof by a double substantially vertical pivot hinge to the other end of said first boom element, the outer end of said second boom element having rigidly secured thereto a clamping and carrying means, said clamping and carrying means including a trough-like element adapted to carry a vdrill, a link pivotally secured at one end thereof to said trough like element and extending outwardly beyond the troughlike element, a clamp substantially horizontally pivotally secured to the outer end of said link and adapted to have a drill secured thereto and a slot in said trough-like element disposed in substantially vertical alignment with said link providing clearance for said link upon pivotal movement thereof.

5. A drill securing and carrying arm having substantially vertical pivot means, means for securing the arm at one end to a vehicle for substantially horizontal swinging movement, clamping and carrying means pivotally carried by the freeend of said arm including a trough affixed to the free end of the arm, a link pivoted at one end to the trough intermediate the ends of the trough and extending therefrom beyond the trough and a clamp substantially horizontally pivotally connected to the free end of said link, said clamp being pivotal for vertical movement and adapted for securing a rock drill to said arm.

6. The structure of claim 5, wherein the arm is provided with a double'vertical pivot connection for additional substantially horizontal swinging movement of said arm.

7. A drill securing and carrying arm having vertical pivot meansfor securing it to a vehicle for horizontal swinging movement, saidarm comprising a first boom element, a second boom element having vertical pivot means pivotally connecting it to the first boom element for horizontal swinging movement relative thereto, a trough-like element affixed to the outer end of the second boom element and having at least one free side, said trough-like element being adapted to carry and transport a rock drill, a horizontal pivot intermediate the ends of the trough-like element, a link pivotally mounted at one end to said horizontal pivot means and extending therefrom beyond the free side of said trough-like element, an annular clamp horizontally pivotally attached to the free end of the link for vertical pivotal movement and adapted to retain a drill in adjustable position relative to said vehicle.

8. The structure of claim 7, wherein the vertical pivot means connecting the first and second boom elements comprises pivot means on each boom and an elongated hinge element having pivot means at either end thereof.

9. The structure of claim 7, in which the trough-like element is provided with a longitudinally extending slot extending from the horizontal pivot means to the free side of the trough-like element.

References Cited in the file of this patent UNITED STATES PATENTS 

